Post #525991
2026-03-04 21:03 UTC
Replies (18)
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@dougmerritt@mathstodon.xyz 2026-03-04 21:10
@BrunoLevy01@fosstodon.org My late friend Bill Jolitz of 386BSD fame originally ran Unix on a PDP 11/45 on the Berkeley campus -- for a biology department or something. We used to chat a lot. He was a hell of a guy and a great Unix expert; I miss him. https://en.wikipedia.org/wiki/William_Jolitz https://en.wikipedia.org/wiki/386BSD https://en.wikipedia.org/wiki/Berkeley_Software_Distribution
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@auxonic@ottawa.place 2026-03-04 21:50
@BrunoLevy01@fosstodon.org @cstross@wandering.shop I learned assembly on a PDP11! Always had a soft spot for them. Looks great!
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@faraiwe@mstdn.social 2026-03-04 21:53
@BrunoLevy01@fosstodon.org SNORT
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@lispi314@udongein.xyz 2026-03-04 21:59
@BrunoLevy01@fosstodon.org I wonder how much of the OS it can keep in memory at once and how much is paged out. 32Kb sounds like a tight squeeze for a full UNIX.
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@RonJeffries@mastodon.social 2026-03-04 22:03
@BrunoLevy01@fosstodon.org you go, girl!
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@johndgriffith@twit.social 2026-03-04 22:31
@BrunoLevy01@fosstodon.org Macro-11
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@SomeGadgetGuy@techhub.social 2026-03-05 01:00
@BrunoLevy01@fosstodon.org and hopefully it comes with a free Frogurt (which would be good)!
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@mrj@fosstodon.org 2026-03-05 01:01
@BrunoLevy01@fosstodon.org and in California this will automatically provide an age signal 🎉
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@Mecrisp@chaos.social 2026-03-05 01:04
@BrunoLevy01@fosstodon.org Wow, congratulations for this nice find! Wish you a lot of fun on this fine machine!
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@scrottie@bsd.network 2026-03-05 01:53
@BrunoLevy01@fosstodon.org stylin'!!
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@lopta@mastodon.social 2026-03-05 02:32
@BrunoLevy01@fosstodon.org KB or K words? ;-)
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@zaivala@hostux.social 2026-03-05 03:34
@BrunoLevy01@fosstodon.org You have a wide range of OSs to run on that. According to Wikipedia, various models of the PDP 11 could run: BATCH-11/DOS-11, DSM-11, IAS, P/OS, RSTS/E, RSX-11, RT-11, Ultrix-11, Seventh Edition Unix, SVR1, 2BSD My second PC was a PDT 11-78. Small box, two 8" floppy drives, VT-101 Monitor, with an LA-35 "DECWriter III" 7-pin printer. (I'm trusting my very old memory for those model numbers)
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@Nikolai_Kingsley@dobbs.town 2026-03-05 05:32
@BrunoLevy01@fosstodon.org doom port when?
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@bryan@dusty.ninja 2026-03-05 10:36
@BrunoLevy01@fosstodon.org So vi or ed?
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@brunogirin@mastodon.me.uk 2026-03-05 11:38
@BrunoLevy01@fosstodon.org - thanks to this post and to @DamonHD@mastodon.social re-tooting it, I now know you're on the fediverse (good, I hope!)
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@UP8@mastodon.social 2026-03-05 12:24
@BrunoLevy01@fosstodon.org RSTS/E for the win!
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@paul_ipv6@infosec.exchange 2026-03-21 00:35
@BrunoLevy01@fosstodon.org nice! if it doesn't fit in your backpack, just an excuse to get a new backpack. :) of course, it probably doesn't have great battery life but it runs *both* kinds of UNIX. BSD *and* AT&T.
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@weaselx86@mastodon.social 2026-03-23 04:18
@BrunoLevy01@fosstodon.org Congratulations! If you're serious about running Unix, I'd suggest trying to scrounge up the full 256KB of main memory. Back in 1979-1982 I ran the UCLA Math Department PDP-11. The Unix v6 kernel by itself was around 48KB; v7 was around 64KB with just a very few kernel buffers. You might be able to get it to run with 128KB, but remember userspace programs had to swap, not page, so the entire process has to fit resident in main memory to run.